Scott “Kid Cudi” Mescudi stepped in style onto the set of “Conan” in his Nike MAG sneakers to promote the new season of HBO’s “How to Make It in America.” Mr. Rager spoke about buying the limited edition Back to the Future kicks on eBay, being kissed by a male fan onstage (“I’m flattered”), and presented the talk show host with the leather jacket he designed with Surface to Air. Don’t miss Cudder’s Conan string dance at the end.